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Registros recuperados: 18
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Analyse du benthos au large du site des Caps. Recherche de l'impact d'une extraction de granulats ArchiMer
Davoult, Dominique; Richard, Alain.
Le site des Caps est une zone littorale bien particulière, bordure française du goulet du Pas-de-Calais, à la fois rétrécissement géographique important entre la France et l'Angleterre, et limite entre la Manche Orientale et le sud de la Mer du Nord. Une zone d'extraction de granulats marins a été exploitée entre 1971 et 1980 au large de ce site. Cette exploitation a été arrêtée en 1982 par arrêté préfectoral pour des raisons d'atteinte à l'environnement et d'entrave à la pêche. La présente étude a pour but de décrire les peuplements au large du site des Caps, englobant le quadrilatère d'exploitation, de faire ressortir leurs caractéristiques. et d'essayer d'apprécier l'impact dû à l'extraction. Deux problèmes majeurs sont soulevés : d'une part, aucune...
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Ano: 1986 URL: http://archimer.ifremer.fr/doc/00036/14722/12027.pdf
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Benthic metabolism over the emersion - Immersion alternation in sands colonized by the invasive Manila clam Ruditapes philippinarum ArchiMer
Migne, Aline; Trigui, Rima Jihane; Davoult, Dominique; Desroy, Nicolas.
The effect of an invasive infaunal suspension-feeding bivalve, the Manila clam Ruditapes philippinarum, on benthic inorganic carbon and nutrient fluxes was examined through in situ incubations. Measurements were performed in spring and summer on a tidal sandflat of the Rance estuary (south part of the Western English Channel) colonized by the Manila clam after its deliberate introduction in the 1990's. Benthic inorganic carbon fluxes were measured using light and dark benthic chambers both at emersion and immersion. Benthic nutrient fluxes were measured using dark benthic chambers at immersion. Inorganic carbon (IC) and ammonium sediment release under darkness at immersion reached 5.60 mmol m−2 h−1 and 441 μmol m−2 h−1 respectively for a clam density of...
Tipo: Text Palavras-chave: Benthic fluxes; Benthos; Inorganic carbon; Nutrients; Suspension-feeding bivalve; Tidal flats; France; Western English Channel.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00412/52327/53100.pdf
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Combined effects of global climate change and nutrient enrichment on the physiology of three temperate maerl species ArchiMer
Qui-minet, Zujaila Nohemy; Coudret, Jérôme; Davoult, Dominique; Grall, Jacques; Mendez‐sandin, Miguel; Cariou, Thierry; Martin, Sophie.
Made up of calcareous coralline algae, maerl beds play a major role as ecosystem engineers in coastal areas throughout the world. They undergo strong anthropogenic pressures, which may threaten their survival. The aim of this study was to gain insight into the future of maerl beds in the context of global and local changes. We examined the effects of rising temperatures (+3°C) and ocean acidification (−0.3 pH units) according to temperature and pH projections (i.e., the RCP 8.5 scenario), and nutrient (N and P) availability on three temperate maerl species (Lithothamnion corallioides, Phymatolithon calcareum, and Lithophyllum incrustans) in the laboratory in winter and summer conditions. Physiological rates of primary production, respiration, and...
Tipo: Text Palavras-chave: Calcification; Maerl; Nitrate; Ocean acidification; Ocean warming; Phosphate; Photosynthesis; Respiration.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00595/70722/68955.pdf
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Community, Trophic Structure and Functioning in two contrasting Laminaria hyperborea forests ArchiMer
Leclerc, Jean-charles; Riera, Pascal; Laurans, Martial; Leroux, Cedric; Leveque, Laurent; Davoult, Dominique.
Worldwide kelp forests have been the focus of several studies concerning ecosystems dysfunction in the past decades. Multifactorial kelp threats have been described and include deforestation due to human impact, cascading effects and climate change. Here, we compared community and trophic structure in two contrasting kelp forests off the coasts of Brittany. One has been harvested five years before sampling and shelters abundant omnivorous predators, almost absent from the other, which has been treated as preserved from kelp harvest. δ15N analyses conducted on the overall communities were linked to the tropho-functional structure of different strata featuring these forests (stipe and holdfast of canopy kelp and rock). Our results yielded site-to-site...
Tipo: Text Palavras-chave: Laminaria hyperborea; Community cascade; Stable isotopes; Biomass; Suspension-feeders; Omnivorous predators.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00226/33747/32161.pdf
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Impact of the Phaeocystis globosa spring bloom on the intertidal benthic compartment in the eastern English Channel: A synthesis ArchiMer
Spilmont, Nicolas; Denis, Lucie; Artigas, Luis Felipe; Caloin, Frederic; Courcot, Lucie; Creach, Anne; Desroy, Nicolas; Gevaert, Francois; Hacquebart, Pascal; Hubas, Cedric; Janquin, Marie-andree; Lemoine, Yves; Luczak, Christophe; Migne, Aline; Rauch, Mathieu; Davoult, Dominique.
From 1999 to 2005, studies carried out in the frame of regional and national French programs aimed to determine whether the Phaeocystis globosa bloom affected the intertidal benthic communities of the French coast of the eastern English Channel in terms of composition and/or functioning. Study sites were chosen to cover most of the typical shore types encountered on this coast (a rocky shore, an exposed sandy beach and a small estuary). Both the presence of active Phaeocystis cells and their degradation product (foam) did have a significant impact on the studied shores. The primary production and growth rates of the kelp Saccharina latissima decreased during the bloom because of a shortage of fight and nutrient for the macroalgae. On sandy sediments, the...
Tipo: Text Palavras-chave: Macrozoobenthos; Bacteria; Saccharina latissima; Benthic fluxes; Phaeocystis globosa; Intertidal.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6142.pdf
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Spatial and temporal variability of CO2 fluxes at the sediment-air interface in a tidal flat of a temperate lagoon (arcachon bay, France) ArchiMer
Migne, Aline; Davoult, Dominique; Spilmont, Nicolas; Ouisse, Vincent; Boucher, Guy.
This study aimed to explore the spatial and temporal variability of benthic metabolism in a temperate mesotidal lagoon. This was achieved by measuring fluxes of CO2 in static chambers during emersion, both under light and dark conditions. Three sample sites were selected according to their tidal level (upper or mid), their sediment type (sand or mud) and the presence/absence of the seagrass Zostera noltei. The three sites were investigated at three seasons (end of winter, spring and beginning of autumn). At each site and each season, three benthic chambers were used simultaneously in successive incubations over the emersion period. The sediment chlorophyll-a content varied seasonally in the upper sands (reaching 283 mg.m− 2 in spring) but not in the mid...
Tipo: Text Palavras-chave: Intertidal sediment; Benthic metabolism; Primary production; Respiration; French Atlantic coast; Arcachon lagoon.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00307/41810/41013.pdf
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Surveillance écologique et halieutique du site de Paluel - Année 1994 ArchiMer
Thillaye Du Boullay, Herve; Toularastel, France; Piriou, Jean-yves; Coppin, Franck; Richard, I.; Davoult, Dominique; Roger, Franck.
The ecological survey n° 17 covering PALUEL nuclear power station took place between March and September 1994. The following areas were monitored : Hydrology, microbiology, phytoplankton, zooplankton, intertidal phytobenthos and zoobenthos, and fishing. Paluel power station has now been operationnel for eleven years
Tipo: Text Palavras-chave: Benthos; Centrale nucléaire; Halieutique; Pélagos; Surveillance; Benthos; Fishing; Pelagos; Nuclear power station; Survey.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00082/19360/16954.pdf
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Surveillance écologique et halieutique du site de Paluel. Année 1995 ArchiMer
Thillaye Du Boullay, Herve; Toularastel, France; Maheux, Frank; Coppin, Franck; Richard, Ingrid; Davoult, Dominique; Roger, Franck.
The ecological survey n° 18 covering PALUEL nuclear power station took place between March and September 1995. The following areas were monitored Hydrology, microbiology, phytoplankton, zooplankton, intertidal phytobenthos and zoobenthos, and fishing. Paluel power station has now been operationnel for eleven years.
Tipo: Text Palavras-chave: Benthos; Centrale nucléaire; Halieutique; Pélagos; Surveillance; Benthos; Fishing; Pelagos; Nuclear power station; Survey.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00081/19261/16856.pdf
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Surveillance écologique et halieutique du site de Paluel - Année 1996 ArchiMer
Thillaye Du Boullay, Herve; Toularastel, France; Maheux, Frank; Coppin, Franck; Richard, Ingrid; Davoult, Dominique; Le Claire, Jacques.
The ecological survey n°19 covering PALUEL nuclear power station took place between March and September 1996. The following areas were monitored : Hydrology, microbiology, phytoplankton, zooplankton, intertidal phytobenthos and zoo~enthos, and fishing. Paluel power station bas now been operationnel for thirteen years.
Tipo: Text Palavras-chave: Benthos; Centrale nucléaire; Halieutique; Pélagos; Surveillance; Benthos; Fishing; Pelagos; Nuclear power station; Survey.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00082/19326/16920.pdf
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Surveillance écologique et halieutique du site de Paluel. Année 1997 ArchiMer
Thillaye Du Boullay, Herve; Toularastel, France; Maheux, Frank; Coppin, Franck; Richard, Ingrid; Davoult, Dominique; Le Claire, Jacques.
The ecological survey n°20 covering PALUEL nuclear power station took place between March and September 1997. The following areas were monitored : Hydrology, microbiology, phytoplankton, zooplankton, intertidal phytobenthos and zoobenthos, and fishing. Paluel power station has now been operationnel for forteen years
Tipo: Text Palavras-chave: Benthos; Centrale nucléaire; Halieutique; Pélagos; Surveillance.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00081/19262/16857.pdf
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Surveillance écologique et halieutique du site de Paluel - Année 1999 ArchiMer
Thillaye Du Boullay, Herve; Maheux, Frank; Rumebe, Myriam; D'Elbee, Jean; Davoult, Dominique; Richard, Ingrid; Leclaire, Jacques; Delpech, Jean-paul; Raulin, Pascal.
The ecological survey n°22 covering PALUEL nuclear power station took place between March and September 1999. The following areas were monitored : pélagique, benthique and halieutique. Paluel power station bas now been operationnel for
Tipo: Text
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00083/19392/16985.pdf
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Surveillance écologique et halieutique du site de Paluel - Année 2000 ArchiMer
Thillaye Du Boullay, Herve; Maheux, Frank; Rumebe, Myriam; D'Elbee, Jean; Davoult, Dominique; Richard, Ingrid; Dorobisz, Laurence; Coppin, Franck; Raulin, Pascal.
The ecological survey n°23 covering PALUEL nuclear power station took place between March and September 2000. The following areas were monitored : pélagique, benthique and halieutique. Paluel power station has now been operationnel for
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Ano: 2000 URL: http://archimer.ifremer.fr/doc/00083/19389/16983.pdf
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Surveillance Ecologique et Halieutique du site de Paluel. Année 2002. Rapport scientifique annuel ArchiMer
Thillaye Du Boullay, Herve; Davoult, Dominique; Delpech, Jean-paul; Dorobisz, Laurence; Lampert, Luis; Maheux, Frank; Richard, Ingrid; Rumebe, Myriam.
Monitoring n°25 of the Paluel nuclear power plant takes into account studies conducted between March and September 2002. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for nineteen years.
Tipo: Text Palavras-chave: Pelagos Halieutique Benthos Surveillance Centrale nucléaire Paluel Pelagos Fisheries Benthos Nuclear power plant Paluel; Monitoring.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/rapport-1025.pdf
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Surveillance écologique et halieutique du site de Paluel. Année 2003.Rapport scientifique annuel ArchiMer
Davoult, Dominique; Delpech, Jean-paul; Lampert, Luis; Loquet, Nicolas; Maheux, Frank; Rumebe, Myriam.
Monitoring n°26 of the Paluel nuclear power plant takes into account studies conducted between March and September 2003. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for twenty years.
Tipo: Text Palavras-chave: Pelagos; Halieutique; Benthos; Surveillance; Centrale nucléaire Paluel; Pelagos; Fisheries; Benthos; Nuclear power plant; Monitoring; Paluel.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/rapport-1029.pdf
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Surveillance écologique et halieutique du site de Paluel. Année 2004. Rapport scientifique annuel ArchiMer
Lampert, Luis; Davoult, Dominique; Delpech, Jean-paul; Loquet, Nicolas; Maheux, Frank; Dagault, Françoise.
Monitoring n°27 of the Paluel nuclear power plant takes into account studies conducted between March and September 2004. Impacts on hydrology, Microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for twenty years.
Tipo: Text Palavras-chave: Pelagos Halieutique Benthos Surveillance Centrale nucléaire Paluel Pelagos Fisheries Benthos Nuclear power plant Paluel; Monitoring.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/rapport-1026.pdf
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Surveillance écologique et halieutique du site électronucléaire de Paluel - Année 2001. Rapport scientifique annuel ArchiMer
Thillaye Du Boullay, Herve; Crassous, Marie-pierre; Davoult, Dominique; Delpech, Jean-paul; Dorobisz, Laurence; Maheux, Frank; Monbet, Philippe; Richard, I.; D'Elbee, Jean.
Monitoring no24 of the Paluel nuclear power plant takes into account studies conducted between March and September 2001. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fis he ries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for eighteen years.
Tipo: Text Palavras-chave: Centrale nucléaire Paluel Surveillance Halieutique Pelagos Benthos Paluel Monitoring Nuclear power plant; Benthos Fisheries Pelagos.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/00083/19390/16984.pdf
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Surveillance écologique et halieutique du site électronucléaire de Paluel. Année 2007 - Rapport scientifique annuel ArchiMer
Lampert, Luis; Abernot, Chantal; Antajan, Elvire; Davoult, Dominique; Delpech, Jean-paul; Meirland, Antoine; Migne, Aline; Nogues, Loic.
Monitoring n°30 of the Paluel nuclear power plant takes into account studies conducted between March and September 2007. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for twenty four years.
Tipo: Text Palavras-chave: Pelagos; Halieutique; Benthos; Surveillance; Centrale nucléaire Paluel; Pelagos; Fisheries; Benthos; Nuclear power plant; Monitoring; Paluel.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/rapport-5379.pdf
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Surveillance écologique et halieutique du site électronucléaire de Paluel. Année 2009. Rapport scientifique annuel final ArchiMer
Monbet, Philippe; Antajan, Elvire; Claquin, Pascal; Davoult, Dominique; Delpech, Jean-paul; Le Gac-abernot, Chantal; Meirland, Antoine; Migne, Aline; Rolet, Céline; Rostiaux, Emilie; Talleux, Jean-denis.
The monitoring report (n°32) of the nuclear power plant located in Paluel takes into account scientific studies carried out between March and September 2009. Environmental effects and potential impacts on the aquatic ecosystem are reported through different chapters : hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos. This power plant has been in operation for twenty six years.
Tipo: Text Palavras-chave: Centrale nucléaire Paluel Surveillance; Benthos Halieutique Pelagos Paluel Monitoring Nuclear power plant Benthos Fisheries Water quality.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00018/12919/9892.pdf
Registros recuperados: 18
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